该文以机头内的压力分布建立相应的目标函数,采用了复合形法对于衣架机头的流道尺寸进行了优化设计.计算出使得沿机头宽度方向上压力分布最为均匀的流道尺寸参数,从而设计出
首先该文对水平管内油气、气水和气水两相以及油气水三相流的流型及其转变规律进行了实验和理论研究,分析了各种流型间的转变机理,得到了流型图和流型转变关系式,理论值和实
Beijing has announced plans as one of 46 pilot cities to implement new household refuse management regulations from May 1. According to the regulations, househo
该文主要探讨了量热器法试验台上的制冷剂含油量对压缩机冷量测量精度的影响.该文首先分析了R12、R22与石蜡基润滑油的互溶性及R134a与多无醇脂类润骨油POE的互溶性,拟合了R2
该文分别对以纯氩和氩-氢为工作气体的直流电弧等离子体发生器进行了层流与紊流工况下的数值模拟,并进行了氩等离子体射流射向不同环境气体和在不同流动工况下的数值模拟.文
In the early hours of the ming in Shanghai, 2004, a man pulling a three-wheel cart cycles through the streets. rnHunched over his handlebars, he meandersthrough
目前国内外对于工业烟气中的SO2和NOx污染物开发了一系列成熟的应用技术,然而传统的单独脱硫脱硝通常具有设备复杂,投资及运行费用高等问题,因此开发一套成熟的脱硫脱硝一体化技
In April 2017, seven pilot free trade zones (FTZs) in Liaoning, Zhejiang, Henan, Hubei, Chongqing, Sichuan, and Shaanxi were put into operation.rnIn the past th